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  2. Accelerating expansion of the universe - Wikipedia

    en.wikipedia.org/wiki/Accelerating_expansion_of...

    This results in a larger light-travel time, larger distance and fainter supernovae, which corresponds to the actual observations. Adam Riess et al. found that "the distances of the high-redshift SNe Ia were, on average, 10% to 15% further than expected in a low mass density Ω M = 0.2 universe without a cosmological constant". [14]

  3. Acceleration - Wikipedia

    en.wikipedia.org/wiki/Acceleration

    The true acceleration at time t is found in the limit as time interval Δt → 0 of Δv/Δt. An object's average acceleration over a period of time is its change in velocity, , divided by the duration of the period, .

  4. Chronology of the universe - Wikipedia

    en.wikipedia.org/wiki/Chronology_of_the_universe

    This time happens to correspond roughly to the time of the formation of the Solar System and the evolutionary history of life. Stelliferous Era: 150 Ma ~ 100 Ta [19] 20 ~ −0.99: 60 K ~ 0.03 K: The time between the first formation of Population III stars until the cessation of star formation, leaving all stars in the form of degenerate ...

  5. Proper acceleration - Wikipedia

    en.wikipedia.org/wiki/Proper_acceleration

    Map & traveler views of 1g proper-acceleration from rest for one year. Traveler spacetime for a constant-acceleration roundtrip. In relativity theory, proper acceleration [1] is the physical acceleration (i.e., measurable acceleration as by an accelerometer) experienced by an object.

  6. Experimental testing of time dilation - Wikipedia

    en.wikipedia.org/wiki/Experimental_testing_of...

    Since the result was the same, it was shown that acceleration has no impact on time dilation. [28] In addition, Roos et al. (1980) measured the decay of Sigma baryons, which were subject to a longitudinal acceleration between 0.5 and 5.0 × 10 15 g. Again, no deviation from ordinary time dilation was measured. [30]

  7. Hubble's law - Wikipedia

    en.wikipedia.org/wiki/Hubble's_law

    The Hubble constant H 0 has units of inverse time; the Hubble time t H is simply defined as the inverse of the Hubble constant, [50] i.e. t H ≡ 1 H 0 = 1 67.8 ( k m / s ) / M p c = 4.55 × 10 17 s = 14.4 billion years . {\displaystyle t_{H}\equiv {\frac {1}{H_{0}}}={\frac {1}{67.8\mathrm {~(km/s)/Mpc} }}=4.55\times 10^{17}\mathrm {~s} =14.4 ...

  8. Figs (FIGS) Q4 2024 Earnings Call Transcript - AOL

    www.aol.com/finance/figs-figs-q4-2024-earnings...

    FIGS earnings call for the period ending December 31, 2024.

  9. Aberration (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Aberration_(astronomy)

    This deflection may equivalently be described as a light-time effect due to motion of the Earth during the 8.3 minutes that it takes light to travel from the Sun to Earth. The relation with is : [0.000099365 rad / 2 π rad] x [365.25 d x 24 h/d x 60 min/h] = 8.3167 min ≈ 8 min 19 sec = 499 sec. This is possible since the transit time of ...